When I went to the countryside in recent surveys, I found that a small number of large-water cultivators raised squid, a good idea, but when stocking fish, not a one-time release, but to adopt a secondary restocking method, that is, after the Spring Festival, a certain percentage A large batch of large-sized squid species will be stocked, and a batch of squid summer flowers will be stocked again in June and July. Imagine that at the end of this year, both mature fish and large-sized squid species can be cultivated. Providing provenance for the stocking of fish species in the next year is a double benefit. The author believes that this mode of raising summer fish in large waters is undesirable. The reasons are as follows:
One is that the price of adult squid is much higher than that of fish species, and it is not possible to use large water surface to cultivate squid species. In recent years, the price of squid adult fish, especially large-sized ponds, is very high, while the price of fish species is relatively low. For example, squid with a specification of about 2.5 kilograms is about 7 yuan per kilogram; squid with a specification of about 3.0 kilograms, About 12 yuan per kilogram, the price above the above specifications is even higher. The price of carp fingerlings ranges from 5 yuan to 6 yuan per kilogram, and the price of carp fingerlings is about 8 yuan per kilogram. The carp is a filter-feeding fish, and the large-water-surfaced carp is basically based on natural production, which means that its yield is relatively stable. If more than 1 kilogram of carp is cultivated, then it will decrease by 1 Kilograms of adult fish, large water surface because of good water quality, large body of water, as long as a reasonable stocking, carp adult fish out of large specifications, good body color, fresh taste, very popular with consumers, the price is far higher than the fish species.
The second is that large-surfaced fishes raise summer fish, which can cause fish species to be injured when catching fish. The body of squid is weak and unable to withstand torment, especially for the fish species. Large-water surface aquaculture has high yields and large individuals. When catching adult fish, squid species also enter the net pocket at the same time. Since a large number of fish are concentrated together, they will inevitably cause squeezing of squid species, leading to de-scaling of species. The capillary rupture of the body surface and bleeding will eventually affect the survival rate of the fingerlings.
Third, it is difficult to control the size and quantity of fish species by adopting large-scale surface cultures and raising summer flowers. The eel summer flowers are small in size and have weak constitutions. Their survival rate is already low. If they are cultivated in the water, their density will be lower. As a result, the density of the eel will be difficult to grasp and it will be difficult to cultivate the specifications and quantity of the fish species. Take control. When catching fish from the end of the year, the number of fish species is also more difficult, and they have to stay on the surface of the water to continue breeding, so that the size and production of adult fish in the second year may not achieve the desired result, and the economic benefits will also be affected. .
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